diff --git a/eddy/runEddy b/eddy/runEddy
index a99042d7b58a91420df8c3d961243e9ed1e82612..222b8f1f153c69a83eb7166792961823c6b26c28 100755
--- a/eddy/runEddy
+++ b/eddy/runEddy
@@ -74,11 +74,15 @@ do
     extra_args=""
 
   else
-    fsl_sub="fsl_sub -l ${outdir} -q long.q -s openmp,6"
     # unpack eddy_cpu_nthr_N
     # into eddy_cpu --nthr=N
+    fsl_sub="fsl_sub -l ${outdir} -q long.q"
     exe="${exe_name%_nthr*}"
-    extra_ars="--nthr=${exe_name#eddy_cpu_nthr_}"
+    nthr="${exe_name#eddy_cpu_nthr_}"
+    extra_args="--nthr=${nthr}"
+    if [ "${nthr}" != "1" ]; then
+      fsl_sub="${fsl_sub} -s openmp,${nthr}"
+    fi
   fi
 
   # fsl_sub will return an error (and not